Evolution of the torsion-curvature of a crystal lattice upon the deformation of polycrystalline Cu–Al and Cu–Mn solid solutions: The role of grain size

Resumo

Torsion-curvature χ of a crystal lattice that occurs upon the deformation of polycrystalline Cu‒Mn and Cu–Al alloys is studied by means of transmission diffraction electron microscopy. The sources of χ are determined, the effect grain size has on the magnitude of χ is established. A linear relationship between χ and the density of the disoriented deformation boundaries is discovered.